Mark Mullen, Co-Founder & Managing Director at Bonfire Ventures
Mark Mullen, Co-Founder & Managing Director at Bonfire Ventures

Mark Mullen

Co-Founder
Fintech and Services, Vertical AI Software, Logistics Infrastructure, Payments Solutions

 "We like to bet on those who believe in themselves. If you've never taken a chance on yourself, at least think about it. Unless you do, you may never know what you're missing. And neither will the rest of the world."

Mark Mullen

Co-Founder
Fintech and Services, Vertical AI Software, Logistics Infrastructure, Payments Solutions

About Mark

For me, seed investing is personal. If we meet, I’ll want to hear your story before I hear the pitch. I want to know what the forces and circumstances are that have shaped you, and why this particular problem matters enough for you to build a company around it. I’m not looking for someone who has every answer or fits a particular mold. I look for drive, self-awareness, and conviction. Before I invest, I also ask myself one simple question: Do I care? Do I care deeply enough about this founder, this problem, and this company to give it everything I have? If the answer is yes, I’m all in.

My own story has taken a few wide arcs and given me two distinct but connected careers. I spent the first 20 years as an M&A investment banker in SF, Paris, London and NYC focused on telecommunications, cable, and technology infrastructure. I worked for Bill Daniels, known as the father of cable television in the United States, and eventually became a senior partner at his firm. As a banker, I lived and worked across Europe and the United States and advised entrepreneurs and companies on deals across 30 countries. That experience taught me how to evaluate opportunities, navigate high-stakes decisions, and work with very different kinds of leaders, all of which still shapes how I advise founders today.

We sold the firm to RBC Capital Markets and I stepped away from banking in 2010 to serve as COO of the City of Los Angeles and Senior Advisor to the then Mayor, Antonio Villaraigosa. That experience reinforced something I had seen throughout my international career. There is no single background or personality type that produces a great leader, and the strongest teams are often made up of people who see the world differently.

For the past two decades, I’ve been making seed investments in tech’s most promising B2B founders, with an emphasis on Vertical AI Software and Fintech. Before Bonfire, I founded Double M Partners and Mull Capital and managed high-growth funds focused on internet, media, and technology. I also frequently co-invested with Jim Andelman, which became the foundation for our rewarding partnership at Bonfire.

I’ve invested through several major technology and capital markets shifts, and that experience has taught me how important it is to stay steady when everything around you is changing. I try not to get swept up in the hype or distracted by the inevitable swings in the market. AI is changing both the companies that can be built and the kind of founder it takes to build them, but the fundamentals still matter. Good judgment, real customer understanding, and the discipline to build something lasting never go out of style.

I try to be the person founders call first when something important happens, especially when something goes wrong. I’ll give you my honest opinion, make the introduction, pick up the phone, and help you think through the decision. I take mentorship seriously and believe my job extends well beyond the board meeting.

Outside of work, what I value most is time with my family and friends and everyone, including my wife and kids calls me "Mull".  I’ve always been drawn to stories about people taking enormous risks and venturing into the unknown, which probably explains why Undaunted Courage is my favorite book and why, after all these years, I still love working with founders.

Last Updated:
July 2026
Working with
Mark

“It’s brutal being a founder. Sometimes things happen, and you need people who can help you through them. When the chips are down, you figure out who’s really there for you, and Mark has stood by us time and again in those tough moments. During one particularly difficult board meeting, he recognized that the conversation was going sideways, stepped in, and advocated for me to the rest of the board. He said the things that needed to be said so I didn’t have to—doing it with empathy, backed by data, to help get everyone realigned.

And when one financing stalled in the 11th hour, they stepped in to ensure continuity. That support gave us the headspace to drive growth, complete the round, and today we have over $700M in revenue and 500 employees. Mark and the Bonfire team genuinely care about me and my family. There’s a rich, real relationship there that goes way beyond just, ‘Here’s gross profit this month."

Robbins Schrader, CEO, SafeRide Health

Exits

The Trade Desk (IPO), Scopely (acquired by Savvy Games), Bitium (acquired by Google), Clique Media (acquired by Future Publishing), Edgecast (acquired by Verizon), Emailage (acquired by LexisNexis), EV Connect (acquired by Schneider Electric), Gradient X (acquired by SingTel), Lettuce (acquired by Intuit), MessageLabs (acquired by Symantec), MomentFeed (acquired by Uberall), Mover.io (acquired by Microsoft), OpenPath (acquired by Motorola), Orbitera (acquired by Google), Pathmatics (acquired by Sensor Tower), Prevoty (acquired by Imperva), Reaction Commerce (acquired by Mailchimp), Retention Science (acquired by Endurance Intl), Seismic Games (acquired by Niantic), Sense360 (acquired by Medallia), Tradesy (acquired by Vestiare Collective), Abode (10KC), Honk (Frontenac)

Get to know Mark

Mark

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